Question

Which of the following represents the complete prime factorisation of 250?

Options

• 2 × 5 × 5

• 5 × 50

• 2 × 5 × 5 × 5

• 2 × 125

Answer 1

2 × 5 × 5 × 5

Explanation:

250 breaks down into prime factors as 2 × 5 × 5 × 5, where 2 and 5 are both prime numbers.